Decentralized Federated Dataset Dictionary Learning for Multi-Source Domain Adaptation

Fuente: arXiv
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Main Authors: Clain, Rebecca, Montesuma, Eduardo Fernandes, Mboula, Fred Ngolè
Format: Preprint
Published: 2025
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author Clain, Rebecca
Montesuma, Eduardo Fernandes
Mboula, Fred Ngolè
author_facet Clain, Rebecca
Montesuma, Eduardo Fernandes
Mboula, Fred Ngolè
contents Decentralized Multi-Source Domain Adaptation (DMSDA) is a challenging task that aims to transfer knowledge from multiple related and heterogeneous source domains to an unlabeled target domain within a decentralized framework. Our work tackles DMSDA through a fully decentralized federated approach. In particular, we extend the Federated Dataset Dictionary Learning (FedDaDiL) framework by eliminating the necessity for a central server. FedDaDiL leverages Wasserstein barycenters to model the distributional shift across multiple clients, enabling effective adaptation while preserving data privacy. By decentralizing this framework, we enhance its robustness, scalability, and privacy, removing the risk of a single point of failure. We compare our method to its federated counterpart and other benchmark algorithms, showing that our approach effectively adapts source domains to an unlabeled target domain in a fully decentralized manner.
format Preprint
id arxiv_https___arxiv_org_abs_2503_17683
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Decentralized Federated Dataset Dictionary Learning for Multi-Source Domain Adaptation
Clain, Rebecca
Montesuma, Eduardo Fernandes
Mboula, Fred Ngolè
Machine Learning
Decentralized Multi-Source Domain Adaptation (DMSDA) is a challenging task that aims to transfer knowledge from multiple related and heterogeneous source domains to an unlabeled target domain within a decentralized framework. Our work tackles DMSDA through a fully decentralized federated approach. In particular, we extend the Federated Dataset Dictionary Learning (FedDaDiL) framework by eliminating the necessity for a central server. FedDaDiL leverages Wasserstein barycenters to model the distributional shift across multiple clients, enabling effective adaptation while preserving data privacy. By decentralizing this framework, we enhance its robustness, scalability, and privacy, removing the risk of a single point of failure. We compare our method to its federated counterpart and other benchmark algorithms, showing that our approach effectively adapts source domains to an unlabeled target domain in a fully decentralized manner.
title Decentralized Federated Dataset Dictionary Learning for Multi-Source Domain Adaptation
topic Machine Learning
url https://arxiv.org/abs/2503.17683